Well fishing tool



Sept. 6, 19.32. w. OBERLE 1,876,339

WELL FISHING TOOL Filed Dec. 29, 1931 2 Sheets-Sheet 2 Patented Sept. 6,1932 I UNITED STATES PATENT) same WELL FISHING TOOL 1 Application filedDecember 29, 1931. Serial No. 583,740.

This invention relates to an improved tool notch 11 formed in thegripping ends thereof, generally referred to in the prior art as a saidnotch being adapted to securelyengage well fishing tool, and, as thename implies, the object or implement (not shown) adaptused for depthretrieving of lost implements ed to be gripped and lifted up with thetool. I v

such as become lodged in the bottom of a This plate 9 is formed with ablock-likeex-"c Well. tension or tang 12 which extends through Asconveyed by the foregoing statement of the aperture 9 and carries aretaining cotter the invention, I am aware that various inkey 13. Thisprovides the desiredrocking struments and tools have been devised andconnection between the plate and the tube h H patented for accomplishingthe above-menand the shape of the parts 12 and the cortioned results. Myprimary aim therefore is respondingly shaped opening 9 prevents lattoprovide a structurally distinguishable tool eral wobbling of the catch."calculated to better fulfill the requirements It will be observed thatintermediate its of well equipment of this class because of the ends thecatch is provided with a swivel eyechoice selection and unification ofparts. bolt 14 to which an eye 15 on the lower end Knowing as I do thatthe art to which the of thetrip or release rod 16 is connected.invention relates is already well developed, This rod 16 extends upthrough a guide open I have accomplished the desired betterment ing 17in a spider bar 18. In fact the rod of results through the developmentof a fishextends up and beyond the upper end of h w ing toolcharacterized by a novel quick rethe tube 7 where it is fashioned with afinger leasable implement catch, a guiding pilot exring 19.

tension on the lower end of the tubular body The bar 18 forming thespider is provided of the tool, and other important features. withlaterally directed ends 20 riveted or In the drawings, otherwisefastened to diametrically opposite Figure 1 is an elevational view of afishpoints of the tube. The numeral 21 merely ing tool constructed inaccordance with the designates a lifting and lowering bail. presentinvention. In practice, the tool is employed in the Figure 2 is ahorizontal section on the line i customary manner. In other words, thesus- 2-2 of Figure 1. V pension rope, cable or otherflexible elementFigure 3 is a longitudinal sectional view. is attached to the bail 21 atthe'crown por- Figure 4 is a fragmentary view in section tion thereof,and the tool is lowere'd'down and elevation of the upper portion ofFigure in the well and manipulated as conditions 8, observing theassembly at right angles. may require in ordertolocate the lost obFigure 5 is a plan view with certain of ject so that it may be graspedand elevated.

the parts removed. Themanner of manipulation of the tool Figure 6 is afragmentary vertical section in locating the object is of course amatter of on the line 6-6 of Figure 3. experience. The principalthing todo is to The body of the tool is in the form of an attempt to lower thetube 7 over 'the'obje'ct opened ended tube7 of appropriate diameter. sothat the object will be confined in the A; At its lower end this tube isfashioned with lower portion of said tube. This action lifts 9G asomewhat pointed extension 8 which functhe latch or catch 10 so that thefree swingtions as a pilot and aids in feeling the obable end thereofwill bind the object between ject and implement in the bottom of thewell. the notched end 11 of the catch and the in- Moreover, it aids inpermitting the tube 7 to terior of the tube 7. Then the tool with the Hbe descended and avoids canting of the tube. object trapped therein iselevated as is evi- '5 Near the lower end is a square aperture 9 dent.The catch 10 may be conveniently which serves to accommodate a portionof released by properly manipulating there-- the swingably mounted catch10. This catch leasing rod 16. m comprises a somewhat rectangular plateThe points of novelty to be observed are transversely curved and havinga segmental as follows:

The disposition of a bar-like spider 18 in the upper end portion of thetube 7 for reinforcing purposes and to provide a guide for the rod 16 isbelieved important. This part 18 also serves as a stop or an abutmentpreventing the tube 7 from being lowered too far down on the objectadapted to be retrieved.

The curved formation of the catch plate 10 with the notched end 11 andthe blocklike pivotal connection 12 arranged in the aperture 9 isbelieved to be another structural feature of distinction. Then too, theextension 8 constituting the pilot to facilitate location of the lostobject is an added distinction.

It is though from the foregoing description that the advantages andnovel features of the invention will be readily apparent. It is to beunderstood that changes may be made in the construction and in thecombination and arrangement of the several parts provided that suchchanges fall within the scope of the appended claims.

I claim:

1. A well fishing tool of the class described comprising a tubular bodyprovided near its lower end with a substantially square aperture, acatch comprisinga substantially rectangular plate having its free endformed 1 with a curvate notch having its opposite end curved to conformto the interior of the body and further formed at said last-named endwith a thickened block-like extension projecting through and beyond theaperture, said extension being formed with an opening,

a key in said openlng constltutlng a pivotal retaining connection forthe plate, and a release rod pivotally attached at its lower end to theintermediate portion of said plate.

2. A well fishing tool of the class'described comprising an open-endedtubular body pro vided at its lower end with an extension constituting apilot, a pivoted catch mounted in the lower end portion of said body, aspider mounted in the upper end portion thereof, said spider beingprovided with a guide hole located adjacent that part of the spiderwhich is attached to the same side of the body to which the catch ispivoted, a release rod formed at its upper end with a finger ring andextending down through said guide hole and swivelly connected at itslower end with the free swingable end of said catch, together with alifting bail attached to the upper end of said body.

In testimony whereof I aflix my signature.

WILLIAM OBERLE.

